Convert your .223 (5.56), 9mm, or .22 accessories to .578-28 RH with this premium thread adapter! Made out of black oxidized steel, this is the perfect solution for this specific accessory adaptation!
Inner Threads: 1/2-28 RH
Outer Threads: .578-28 RH
Material: Black Oxidized Steel
Please note that this does not fit AR platforms chambered in 9mm. Thank you.
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